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Corrected (unsigned) shr for PHP Codegen

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Hans Raaf
2016-02-07 05:22:32 +01:00
parent bb3fe1493d
commit e66f5c419c
1 changed files with 12 additions and 3 deletions
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15
compiler/jsgen.nim
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@@ -400,13 +400,22 @@ proc binaryExpr(p: PProc, n: PNode, r: var TCompRes, magic, frmt: string) =
r.res = frmt % [x.rdLoc, y.rdLoc]
r.kind = resExpr
proc unsignedTrimmer(size: BiggestInt): Rope =
proc unsignedTrimmerJS(size: BiggestInt): Rope =
case size
of 1: rope"& 0xff"
of 2: rope"& 0xffff"
of 4: rope">>> 0"
else: rope""
proc unsignedTrimmerPHP(size: BiggestInt): Rope =
case size
of 1: rope"& 0xff"
of 2: rope"& 0xffff"
else: rope""
template unsignedTrimmer(size: BiggestInt): Rope =
size.unsignedTrimmerJS | size.unsignedTrimmerPHP
proc binaryUintExpr(p: PProc, n: PNode, r: var TCompRes, op: string, reassign: bool = false) =
var x, y: TCompRes
gen(p, n.sons[1], x)
@@ -455,10 +464,10 @@ proc arith(p: PProc, n: PNode, r: var TCompRes, op: TMagic) =
var x, y: TCompRes
gen(p, n.sons[1], x)
gen(p, n.sons[2], y)
let trimmer = unsignedTrimmer(n[1].typ.skipTypes(abstractRange).size)
if p.target == targetPHP:
r.res = "$1 >> $2" % [x.rdLoc, y.rdLoc]
r.res = "(($1 $2) >= 0) ? (($1 $2) >> $3) : ((($1 $2) & 0x7fffffff) >> $3) | (0x40000000 >> ($3 - 1))" % [x.rdLoc, trimmer, y.rdLoc]
else:
let trimmer = unsignedTrimmer(n[1].typ.skipTypes(abstractRange).size)
r.res = "(($1 $2) >>> $3)" % [x.rdLoc, trimmer, y.rdLoc]
of mCharToStr, mBoolToStr, mIntToStr, mInt64ToStr, mFloatToStr,
mCStrToStr, mStrToStr, mEnumToStr: